Two-storey extension planning permission refused in Croydon

Most were refused over design. We read 34 of the 39 two-storey extensions Croydon refused since May 2026 and sorted each by what its reasons were about. Each dot is one of them.

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Design and character of the area 26 of 34
Insufficient information 15 of 34
Neighbours' amenity 14 of 34
Highways and parking 7 of 34
Living conditions for future occupiers 7 of 34
Trees, landscape and ecology 3 of 34
Green Belt and open countryside 2 of 34
Heritage assets 2 of 34

Each dot is one refusal. A refusal usually gives more than one reason, so it can stand in more than one row.

Also cited: principle of development (1).

Of the 34 refusals of two-storey extensions Croydon made since May 2026 that we read, 76% were refused at least in part over design or the character of the area. Plan Forecast, 3 November 2026.

Design and character of the area

of the refusals we read

26 of the 34 two-storey extensions Croydon refused that we read gave a reason about how the work looked, or how it sat in its street: its size, its shape, its materials.

How the councils compare

Trafford 91%
Bromley 83%
Ealing 81%
Bolton 79%
Leeds 79%
Cheshire West and Chester 78%
York 78%
Rochdale 77%
Croydon 76%
Manchester 75%
Epping Forest 74%
Salford 63%
Ashford 61%
Buckinghamshire 60%
Stockport 57%
North Yorkshire 52%
Wakefield 51%
Milton Keynes 47%
Westminster 24%

Share of each council's refused two-storey extensions we read that gave a reason about it.

Insufficient information

of the refusals we read

15 of the 34 two-storey extensions Croydon refused that we read gave a reason about drawings or details the council needed and did not have.

How the councils compare

Croydon 44%
Buckinghamshire 29%
Westminster 29%
Bolton 20%
Epping Forest 16%
Ealing 11%
Ashford 10%
Wakefield 9%
Milton Keynes 7%
Manchester 6%
Bromley 5%
Cheshire West and Chester 5%
Leeds 5%
North Yorkshire 5%
Salford 4%
York 2%
Rochdale 1%
Trafford 1%
Stockport 0%

Share of each council's refused two-storey extensions we read that gave a reason about it.

Neighbours' amenity

of the refusals we read

14 of the 34 two-storey extensions Croydon refused that we read gave a reason about the people next door: their light, their outlook, their privacy, the sense of being hemmed in.

How the councils compare

Manchester 58%
Salford 57%
Rochdale 51%
Stockport 47%
Wakefield 46%
Leeds 43%
Croydon 41%
North Yorkshire 40%
Milton Keynes 37%
Trafford 35%
Ealing 34%
Bolton 33%
York 33%
Bromley 31%
Cheshire West and Chester 29%
Epping Forest 28%
Buckinghamshire 25%
Ashford 15%
Westminster 15%

Share of each council's refused two-storey extensions we read that gave a reason about it.

Also cited

Highways and parking 7 of 34
Living conditions for future occupiers 7 of 34
Trees, landscape and ecology 3 of 34
Green Belt and open countryside 2 of 34
Heritage assets 2 of 34
Principle of development 1 of 34

Policies cited most

The plans and policies Croydon's refusals named, each counted once a refusal.

DM10, Local Plan 34 of 34
D3 30 of 34
SP4, Local Plan 30 of 34
D4 17 of 34
D6 11 of 34
DM29, Local Plan 8 of 34

How we count

These are Croydon's own refusals of two-storey extensions, decided in the last three years and listed on its register. For each one we read the decision notice and sorted its reasons by what they were about. 5 we have not read yet; they are counted as refusals and not as refusals without reasons.

A refusal usually gives more than one reason, so the shares add up to more than a hundred. Which refusals they were, where, and what each said, is in the Planning Forecast for your address, with a link to each council's own notice.

What Croydon approves · Why two-storey extensions are refused at every council we read · Why planning permission gets refused, anywhere

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